After netting twenty times for Holbeach United during the 2014/15 season, Ndlovu was picked up by Grantham Town in March 2015.
He netted four times this season for the Gingerbreads before moving to Evo-Stik Northern Premier League Premier Division rivals Ilkeston FC in September.
He was one of several players allowed to leave the New Manor Ground on Friday as the Robins cut their squad size.